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, 0. 1). FOX. I Molds for Manufacturing.Seamless Glassware.

242,622. Patented June 7, I881.

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[/V V EN 7 OR irt Armw NrTED STATES PATENT Creme,

CHARLES D. FOX, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TC H. C. FOX 85SONS, OF SAME PLACE.

MOLD FOR MANUFACTURING SEAMLESS GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 242,622, dated June 7,1881. Application filed April 27, 1881. (No model.)

To all whom it may concern Be it known that I, CHARLES D. FOX, a citizenof the United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Molds for Mannfaoturin g Seamless Glassware, andI dohereby declare the following to be a full, clear, and exactdescription of the invention, reference being had to the accompanyingdrawings, which form part of this specification, in which- Figure 1 is avertical transverse section of my improved mold. Fig. 2 is a rearelevation of the same. Figs. 3, 4, 5, and 6 are plans illustrating thedifferent positions occupied by the movable parts of the mold when thelatter is in use; and Fig. 7 is a broken elevation, partly in section,of a vessel or bottle blown in one of my improved molds.

My invention has for its object to provide a mold for the manufacture ofseamless glass bottles and other vessels or articles having a wide mouthor neck, such mold being designed and adapted to permit the formation ofsuch seamless articles without the necessity of rotating the same whilebeing blown.

My invention consists in the peculiar construction and combination ofparts hereinafter fully set forth, having reference, principally, to thefollowing points: first, to making that part of the mold in which theneck of the vessel is blown in the form of a seamless or unbroken ringin one piece and separate from the body; second, to connecting theneck-ring, made in one seamless piece, to the body of the mold by ahinge or joint, so as to permit its being thrown up or off said body toallow the bottle or other vessel to be lifted out of the latter; third,to forming the top of the mold with an annular groove onits under side,into which the metal flows when the bottle or other article is beingblown, in order to reduce the thickness of the glass above the neck, sothat it may be readily chipped off without danger of fracturing thelatter; fourth, to forming a glass mold with two covers or tops, oneover the other, the upper top having a central hole of less diameterthan the hole in the other, whereby the blowover formed above said uppertop will pass through the hole in the lower top, as and for the purposehereinafter fully explained; and,

fifth, to certain details of construction and combination hereinafterfully set forth.

Referring to the accompanying drawings, A designates the body of a moldcomposed of metal and formed in one piece. Such body of itself does notconstitute any partof my present invention, and hence need not befurther described.

B represents a metal ring, which is without a seam of any character, andis in one single piece, forming an unbroken annulus, which is separatefromi. 6., not made integral withthe body A. The neck of the bottle orother vessel to be blown in the mold is formed in this ring, which issecured to the body by a hinge, b, to permit it to be thrown back onsaid body, so as to allow the article formed in the mold to be liftedvertically out of the latter. The ring B is recessed on its under side,forming a socket, b, which receives a boss, (1, projecting upwardly fromthe body, and secures said ring against lateral movement when down onsaid body. The ring B has on its upper side a boss, 6 the outer wall orperiphery of which is beveled, forming an annular dovetail, for apurpose hereinafter specified.

C and D represent two covers or tops for the mold, one fitting over theother, and each formed in two sections, 0 c and d d, provided withseparate handles 0' d, and'hinged at e c.

The top C is recessed to receive the boss I) of the ring B, the wall 0of said recess beveling corresponding to the periphery of said boss.

Said top 0 has also a boss, 0 with beveled periphery c, which fits in acorresponding recess, (P, in the upper top, D. The beveling of thebosses and correspondinginclination of the walls of the recesses orsockets in which they fit effects this when said tops are closed. Bytaking hold of the handles and lifting the same the ring B will be alsoraised, as hereinafter set forth. It also prevents the neck-rin g andtops from being lifted when the glass is being blown in the mold. Thetop C is formed on its under side with an annular groove,f. The outerwall of this groove starts at its bottom on a line slightly within thediameter of the neck-opening B in the ring B, so as to leave a narrowannular shoulder, f, projecting over said neck-opening. The top C has acenter hole, f which, at its base, is of nearly the same diameter as theinside diameter of the groove f. The top D has a hole, d of so much lessdiameter than the hole f in the top 0 that the blow-over formed on saidtop D will pass through the hole f in said top 0.

The operation is as follows: The ring B being turned down and the tops 0D opened, as shown in Fig. 3, the neck-openin g B, which is ofrelatively large diameter, is exposed, pet mitting easy access to thebody of the mold, and permitting the ready insertion therein, throughsaid opening, of sumcient metal to form the bottle, jar, or other vesseldesigned to be blown in the mold. The molten metal being inserted by theblower, the tops are closed by an attendant and the article blown. Asthe metal by the act of blowing has entered the groove fin the top 0 itwill prevent said top from being opened. The top D may, however, beopened, and this is done by means of the handles (1 d. As the blow-overformed on said top D is of less diameter than the hole f in the top 0 itmay be passed through latter. To effect this said top 0 is lifted by thehandles 0, carrying with it the ring B, leaving the article which hasbeen blown standing in the body of the mold, with so much of saidarticle as includes the neck and the adhering glass over said neckprojecting above said body. The article thus formed is then lifted outof the mold, a detail section thereof presenting then the appearancesubstantially indicated in Fig. 7. The glass above the neck is then (bya suitable appliance) chipped ofl' and the top of said neck ground. Theglass above the neck formed by the groove f, being of reduced thickness,may be readily chipped 0d, the shoulder f forming on the article blown athin portion, which will cleave readily in the line of the top of theneck under the action of the chipper without fracturing said neck.

The article blown in this mold is without seam or fin in the body,shoulder, or neck, and

. possesses a great advantage over such articles as heretofore made witha seam or seams in the neck. Where a mold is so constructed as to form ascam or fin on the neck the joint which produces such seam becomes, incourse of usage, quite open, enlarging the seam, and thus preventing thetops (which are made uniform in size) from being slipped down over thenecks. Such enlarged seams or fins will also be produced, even in newmolds as heretofore constructed, if the separable sections or two-parttops which form the necks are not brought and held tightly together whenthe vessels are being blown in the molds. Besides, no matter howcarefully such molds which make neck-seams are worked, they can neverproduce articles having as finished an appearance, or capable of havinga top fitted therein as neatly and snugly, as those without seams, aseam, no matter how thin or light, being always a detriment to finishand tight fitting.

I have shown and described amold designed and adapted to form acylindrical or round bottle or jar; but I do not limit my invention toany particular shape or configuration, as molds embodying the principlesof construction herein and hereby set forth and claimed may be made toproduce bottles, jars, and other vessels or articles of oval, square,oblong, or any other design.

In cases where a particularly wide-mouthed vessel is to be made the ringB and top (1 may be made in one piece, with the groove f, as abovedescribed. In such case the opening f 2 must be of sufiicient diameterto readily permit the necessary metal to be passed through it. Theoperation and efi'ect in such case will be the same as above set forth,except that the top 0 will not then open laterally, but will be movedonly with the ring B, the top D being as already described.

What I claim as my invention is as follows:

1. A mold for bottles, jars, or other articles of glassware, having aseamless neck-ring in one piece separate from the body, substantially asshown and described.

2. The combination, with the body of amold for bottles, jars, or otherarticles of glassware, ot' a seamless neck-rin g made in one piece andhinged to said body, substantially as shown and described.

3. A mold-top for articles of glassware, having on its under side anannular groo"c,f, substantially as and for the purpose set forth.

4. The combination, in a mold for articles of glassware, of a neck-ring,B, and a top, 0, having an annular groove of less'diameter than the holein said ring, so as to form a shoulder, f, substantially as and for thepurpose set forth.

5. The combination, with the body ofa mold for articles of glassware, oftwo tops, 0 D, one above the other, the hole in the upper top being ofless diameter than the hole in the other top, substantially as shown anddescribed.

6. The combination, in a mold for articles of glassware, of a neck-ring,B, hinged to the body A, and having a boss, I), with beveled periphery,and a sectional'top, (3, having a recess, W, with inclined walls,forming a socket for said boss, substantially as shown and described.

7. The combination, in a mold for articles of glassware, of a top, (J,having boss 0 with beveled periphery, with superposed top D, having acorresponding recess, 61*, substantially as shown and described.

8. The combination of mold-body A, seamless neck-ring B, and double top0 D, said parts being constructed and designed for operationsubstantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this22d day of April, 1881.

CHARLES D. FOX. Witnesses JOHN W. STEWARD, S. J. VAN STAVOREN.

